package com.weichat.controller;

import com.weichat.config.ProjectUrlConfig;
import com.weichat.exception.SellException;
import com.weichat.util.ResultEnum;
import lombok.extern.slf4j.Slf4j;
import me.chanjar.weixin.common.api.WxConsts;
import me.chanjar.weixin.common.error.WxErrorException;
import me.chanjar.weixin.mp.api.WxMpService;
import me.chanjar.weixin.mp.bean.result.WxMpOAuth2AccessToken;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;

import java.net.URLEncoder;

@Controller
@RequestMapping("/weichat")
@Slf4j
public class WeiChatController {

    @Autowired
    private WxMpService wxMpService;

    @Autowired
    private ProjectUrlConfig projectUrlConfig;

    @RequestMapping("/authorize")
    public String authorize(@RequestParam("returnUrl") String returnUrl) {
        String url=projectUrlConfig.getWechatMpAuthorize() + "/wechat/userInfo";
        String redirectUrl=wxMpService.oauth2buildAuthorizationUrl(url,WxConsts.OAuth2Scope.SNSAPI_BASE, URLEncoder.encode(returnUrl));
        return "redirect:"+redirectUrl;
    }

    @RequestMapping("/authorizeset")
    public String userInfo(@RequestParam("code") String code,
                            @RequestParam("state") String returnUrl){
        WxMpOAuth2AccessToken wxMpOAuth2AccessToken=new WxMpOAuth2AccessToken();
        try {
            wxMpOAuth2AccessToken=wxMpService.oauth2getAccessToken(code);
        }catch (WxErrorException e){
            log.error("【微信网页授权】{}", e);
            throw new SellException(ResultEnum.WECHAT_MP_ERROR.getCode(), e.getError().getErrorMsg());
        }
        String openId=wxMpOAuth2AccessToken.getOpenId();
        return "redirect:" + returnUrl + "?openid=" + openId;
    }





}
